82 
EOTAL nORTICTJLTURAL SOCIETY. 
gressed at tlie beginning of June, after which the plants showed 
the effects of drought. Deep green colour. 
Box 6. Maximum degree of vigour. Arrest in the middle of 
Maj, progress in the early part of June, after which the plants 
were affected by drought. Deep green. 
In the early part of May there was no perceptible relation to 
temperature or rainfall in the condition of the plants in boxes 1, 
2, 3, 4. In box 5 a slight increase in vigour was observed after 
increased rain at the end of May. In box 6 there was slight arrest, 
in proportion to the diminished rain, in the middle of May. After- 
wards the plants suffered so much from drought that no trust- 
worthy comparative observations could be made. 
vii. Trifolium pratense. 
Box 1. Uniform minimum degree of development, healthy 
throughout, no tendency to flower. Height, at the end of June, 
11 inches. 
Box 2. Medium ; rose in the middle of May to a high degree 
of vigour. Maintained that position until the end of the experi- 
ment. Leaves remarkably vigorous. This and box ix. (T. rej^ens) 
were almost the only instances where the plants in no. 2 (min. 
manures) showed so high a degree of vigour. A slight tendency 
to flower was also manifest. Average height, June 30, 11 J inches. 
Box 3. Low degree of vigour ; slight rise at the end of May, 
succeeded by a sudden arrest in June. 
Box 4. Medium vigour, checked throughout May, slight rise in 
June. 
Box 5. Uniform maximum degree of development. Leaves 
larger and less downy than in the others. 
Box 6. High degree, slight check in the middle of May. All 
the plants, except those in box 1, showed the effects of drought ; lat- 
terly the difference between the plants in the six boxes was hardly 
perceptible. 
In the case of the plants in boxes 1 and 2 no perceptible relation 
to temperature was noticeable ; in box 3 a slight increase, in pro- 
portion to increased rain, at the end of May was remarked ; in 
box 4 a slight decrease at the same time ; in box 5 no perceptible 
relation between them was observed ; in box 6 a slight arrest, in 
proportion to decreased rain and temperature, in the early part 
of May was noticed. 
